Hey guys,
The 375 H&H AR has been updated with an adjustable gas block and heavier buffer, which has solved the stock breaking issue.
Fired a bunch since then, decided it's working satisfactorily, and now I'm planning a .458 Lott upper and barrel.
all that really needs swapped is the barrel, but I like the 375 enough that I'd rather keep it on it's own upper to swap back to occasionally.
Link to a video of the test rounds with new gas block and buffer below, it shot stupid smooth. Ammo used was a mix of exceptionally spicy handloads with the 200 grain sierra, and PPU 300 grain factory soft point. The 200 grain load has slightly more recoil, but was still quite manageable.
https://youtube.com/shorts/a1EAQJ26Ugs?feature=share
The 375 H&H AR has been updated with an adjustable gas block and heavier buffer, which has solved the stock breaking issue.
Fired a bunch since then, decided it's working satisfactorily, and now I'm planning a .458 Lott upper and barrel.
all that really needs swapped is the barrel, but I like the 375 enough that I'd rather keep it on it's own upper to swap back to occasionally.
Link to a video of the test rounds with new gas block and buffer below, it shot stupid smooth. Ammo used was a mix of exceptionally spicy handloads with the 200 grain sierra, and PPU 300 grain factory soft point. The 200 grain load has slightly more recoil, but was still quite manageable.
https://youtube.com/shorts/a1EAQJ26Ugs?feature=share